$OpenBSD: patch-src_fe-common_fe-icb_c,v 1.4 2011/10/19 09:47:26 dcoppa Exp $
--- src/fe-common/fe-icb.c.orig	Sat Apr 27 22:56:18 2002
+++ src/fe-common/fe-icb.c	Tue Oct 18 15:20:42 2011
@@ -18,33 +18,73 @@
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
 
+#include <time.h>
+
 #include "module.h"
 #include "module-formats.h"
 #include "signals.h"
 #include "commands.h"
 #include "servers-setup.h"
 #include "levels.h"
+#include "nicklist.h"
 
 #include "icb.h"
 #include "icb-servers.h"
 #include "icb-channels.h"
+#include "icb-nicklist.h"
 #include "icb-protocol.h"
 
 #include "printtext.h"
 #include "themes.h"
 
-static void event_status(ICB_SERVER_REC *server, const char *data)
+static void icb_change_topic(ICB_SERVER_REC *server, const char *topic,
+			     const char *setby, time_t settime)
 {
-	char **args;
+	if (topic != NULL) {
+		g_free_not_null(server->group->topic);
+		server->group->topic = g_strdup(topic);
+	}
 
-	/* FIXME: status messages should probably divided into their own
-	   signals so irssi could track joins, parts, etc. */
-	args = icb_split(data, 2);
-	printformat(server, server->group->name, MSGLEVEL_CRAP,
-		    ICBTXT_STATUS, args[0], args[1]);
-        icb_split_free(args);
+	if (setby != NULL) {
+		g_free_not_null(server->group->topic_by);
+		server->group->topic_by = g_strdup(setby);
+	}
+
+	server->group->topic_time = settime;
+
+	signal_emit("channel topic changed", 1, server->group);
 }
 
+/*
+ * ICB makes it hard to keep track of nicks:
+ *
+ *  - moderators can come and go, and even return with a different nick, while
+ *    still retaining their moderator status
+ *
+ *  - group moderator can change at any time, if the moderator is off-group
+ *    while changing nick
+ *
+ *  - users can be moderator of multiple groups simultaneously, but can only
+ *    be in one group at a time
+ *
+ * So for now we don't bother to track the moderator, just the group nicks
+ */
+static void icb_update_nicklist(ICB_SERVER_REC *server)
+{
+	/*
+	 * In theory we should be able to just send '/who <group>' and parse,
+	 * but the problem is that ICB does not send any kind of end-of-who
+	 * marker when only listing one group, and sending a separate command
+	 * isn't guaranteed to come back in the right order.
+	 *
+	 * So we're forced do perform a full /who and then match against our
+	 * groupname.  A full /who is terminated with a 'Total: ' line which we
+	 * can use as EOF>
+	 */
+	server->silentwho = TRUE;
+	icb_command(server, "w", "", NULL);
+}
+
 static void event_error(ICB_SERVER_REC *server, const char *data)
 {
 	printformat(server, NULL, MSGLEVEL_CRAP, ICBTXT_ERROR, data);
@@ -84,15 +124,351 @@ static void event_personal(ICB_SERVER_REC *server, con
         icb_split_free(args);
 }
 
+static void idle_time(char *buf, size_t bufsize, time_t idle)
+{
+#define MIN_LEN		60UL
+#define HOUR_LEN	3600UL
+#define DAY_LEN		86400UL
+#define WEEK_LEN	604800UL
+
+	if (idle >= WEEK_LEN)
+		snprintf(buf, bufsize, "%2dw%2dd",
+			 (int)(idle/WEEK_LEN), (int)((idle%WEEK_LEN)/DAY_LEN));
+	else if (idle >= DAY_LEN)
+		snprintf(buf, bufsize, "%2dd%2dh",
+			 (int)(idle/DAY_LEN), (int)((idle%DAY_LEN)/HOUR_LEN));
+	else if (idle >= HOUR_LEN)
+		snprintf(buf, bufsize, "%2dh%2dm",
+			 (int)(idle/HOUR_LEN), (int)((idle%HOUR_LEN)/MIN_LEN));
+	else if (idle >= MIN_LEN)
+		snprintf(buf, bufsize, "%2dm%2ds",
+			 (int)(idle/MIN_LEN), (int)(idle%MIN_LEN));
+	else
+		snprintf(buf, bufsize, "   %2ds", (int)idle);
+}
+
+static void cmdout_co(ICB_SERVER_REC *server, char **args)
+{
+	char *p, *group, *topic;
+	int len;
+
+	static const char match_group[] = "Group: ";
+	static const char match_topic[] = "Topic: ";
+	static const char match_topicunset[] = "(None)";
+	static const char match_topicis[] = "The topic is";
+	static const char match_total[] = "Total: ";
+
+	/*
+	 * Use 'co' as the marker to denote wl lines have finished, so
+	 * reset the nick updates
+	 */
+	server->updatenicks = FALSE;
+
+	/* If we're running in silent mode, parse the output for nicks/topic */
+	if (server->silentwho) {
+
+		/* Match group lines */
+		len = strlen(match_group);
+		if (strncmp(args[0], match_group, len) == 0) {
+
+			group = g_strdup(args[0] + len);
+			p = strchr(group, ' ');
+			*p = '\0';
+
+			/* Check for our particular group */
+			len = strlen(group);
+			if (g_ascii_strncasecmp(group, server->group->name, len) == 0) {
+
+				/* Start matching nicks */
+				server->updatenicks = TRUE;
+
+				p = strstr(args[0], match_topic);
+				if (p != NULL && p != args[0]) {
+					topic = p + strlen(match_topic);
+					if (topic != NULL) {
+						len = strlen(match_topicunset);
+						if (strncmp(topic,
+							    match_topicunset,
+							    len) != 0) {
+
+							/* No way to find who set the topic, mark as unknown */
+							icb_change_topic(server, topic, "unknown", time(NULL));
+						}
+					}
+				}
+			}
+			g_free(group);
+		}
+
+		/*
+		 * End of /who output, stop silent mode and signal front-end
+		 * to display /names list
+		 */
+		len = strlen(match_total);
+		if (strncmp(args[0], match_total, len) == 0) {
+			server->silentwho = FALSE;
+			signal_emit("channel joined", 1, server->group);
+		}
+	} else {
+		/* Now that /topic works correctly, ignore server output */
+		len = strlen(match_topicis);
+		if (strncmp(args[0], match_topicis, len) != 0) {
+			printtext(server, NULL, MSGLEVEL_CRAP, "%s", args[0]);
+		}
+	}
+}
+
+static void cmdout_wl(ICB_SERVER_REC *server, char **args)
+{
+	struct tm *logintime;
+	char logbuf[20];
+	char idlebuf[20];
+	char line[255];
+	time_t temptime;
+	int op;
+
+	/* "wl" : In a who listing, a line of output listing a user. Has the following format:
+
+	* Field 1: String indicating whether user is moderator or not. Usually "*" for
+	* moderator, and " " for not.
+	* Field 2: Nickname of user.
+	* Field 3: Number of seconds user has been idle.
+	* Field 4: Response Time. No longer in use.
+	* Field 5: Login Time. Unix time_t format. Seconds since Jan. 1, 1970 GMT.
+	* Field 6: Username of user.
+	* Field 7: Hostname of user.
+	* Field 8: Registration status.
+	*/
+	temptime = strtol(args[4], NULL, 10);
+	logintime = gmtime(&temptime);
+	strftime(logbuf, sizeof(logbuf), "%b %e %H:%M", logintime);
+	temptime = strtol(args[2], NULL, 10);
+	idle_time(idlebuf, sizeof(idlebuf), temptime);
+
+	/* Update nicklist */
+	if (server->updatenicks) {
+		op = FALSE;
+#ifdef NO_MOD_SUPPORT_YET
+		switch(args[0][0]) {
+		case '*':
+		case 'm':
+			op = TRUE;
+			break;
+		}
+#endif
+		icb_nicklist_insert(server->group, args[1], op);
+	}
+	if (!server->silentwho) {
+		snprintf(line, sizeof(line), "*** %c%-14.14s %6.6s %12.12s %s@%s %s",
+			  args[0][0] == ' '?' ':'*', args[1], idlebuf, logbuf, args[5],
+			  args[6], args[7]);
+		printtext(server, NULL, MSGLEVEL_CRAP, line);
+	}
+}
+
 static void cmdout_default(ICB_SERVER_REC *server, char **args)
 {
 	char *data;
 
 	data = g_strjoinv(" ", args+1);
-	printtext(server, server->group->name, MSGLEVEL_CRAP, "%s", data);
+	if (!server->silentwho) {
+		printtext(server, NULL, MSGLEVEL_CRAP, "%s", data);
+	}
         g_free(data);
 }
 
+/*
+ * args0 = "Arrive"
+ * args0 = "<nickname> (<user>@<host>) entered group"
+ */
+static void status_arrive(ICB_SERVER_REC *server, char **args)
+{
+	char *nick, *p;
+
+	nick = g_strdup(args[1]);
+	p = strchr(nick, ' ');
+	*p = '\0';
+	/* XXX: new arrivals can still be moderator */
+	icb_nicklist_insert(server->group, nick, FALSE);
+        g_free(nick);
+
+	printformat(server, server->group->name, MSGLEVEL_CRAP,
+		    ICBTXT_STATUS, args[0], args[1]);
+}
+
+/*
+ * args0 = "Depart"
+ * args1 = "<nickname> (<user>@<host>) just left"
+ */
+static void status_depart(ICB_SERVER_REC *server, char **args)
+{
+	NICK_REC *nickrec;
+	char *nick, *p;
+
+	nick = g_strdup(args[1]);
+	p = strchr(nick, ' ');
+	*p = '\0';
+
+	nickrec = nicklist_find(CHANNEL(server->group), nick);
+	if (nickrec != NULL) {
+		nicklist_remove(CHANNEL(server->group), nickrec);
+	}
+	g_free(nick);
+
+	printformat(server, server->group->name, MSGLEVEL_CRAP,
+		    ICBTXT_STATUS, args[0], args[1]);
+}
+
+/*
+ * args0 = "Sign-on"
+ * args1 = "<nickname> (<user>@<host>) entered group"
+ */
+static void status_signon(ICB_SERVER_REC *server, char **args)
+{
+	char *nick, *p;
+
+	nick = g_strdup(args[1]);
+	p = strchr(nick, ' ');
+	*p = '\0';
+
+	icb_nicklist_insert(server->group, nick, FALSE);
+
+        g_free(nick);
+
+	printformat(server, server->group->name, MSGLEVEL_CRAP,
+		    ICBTXT_STATUS, args[0], args[1]);
+}
+
+/*
+ * args0 = "Sign-off"
+ * args1 = "<nickname> (<user>@<host>) has signed off."
+ */
+static void status_signoff(ICB_SERVER_REC *server, char **args)
+{
+	NICK_REC *nickrec;
+	char *nick, *p;
+
+	nick = g_strdup(args[1]);
+	p = strchr(nick, ' ');
+	*p = '\0';
+
+	nickrec = nicklist_find(CHANNEL(server->group), nick);
+	if (nickrec != NULL) {
+		nicklist_remove(CHANNEL(server->group), nickrec);
+	}
+	g_free(nick);
+
+	printformat(server, server->group->name, MSGLEVEL_CRAP,
+		    ICBTXT_STATUS, args[0], args[1]);
+}
+
+/*
+ * In theory should be status_status() but that's just silly :-)
+ *
+ * args0 = "Status"
+ * args0 = "You are now in group <group>[ as moderator]"
+ */
+static void status_join(ICB_SERVER_REC *server, char **args)
+{
+	icb_update_nicklist(server);
+
+	printformat(server, server->group->name, MSGLEVEL_CRAP,
+		    ICBTXT_STATUS, args[0], args[1]);
+}
+
+/*
+ * args0 = "Name"
+ * args1 = "<oldnick> changed nickname to <newnick>"
+ */
+static void status_name(ICB_SERVER_REC *server, char **args)
+{
+	NICK_REC *nickrec;
+	char *oldnick, *newnick, *p;
+
+	oldnick = g_strdup(args[1]);
+	p = strchr(oldnick, ' ');
+	if (p != NULL) *p = '\0';
+
+	p = g_strdup(args[1]);
+	newnick = strrchr(p, ' ');
+	if (newnick != NULL)
+	       newnick++;
+
+	nickrec = nicklist_find(CHANNEL(server->group), oldnick);
+	if (nickrec != NULL)
+		nicklist_rename(SERVER(server), oldnick, newnick);
+
+	/* Update our own nick */
+	if (strcmp(oldnick, server->connrec->nick) == 0) {
+		server_change_nick(SERVER(server), newnick);
+		g_free(server->connrec->nick);
+		server->connrec->nick = g_strdup(newnick);
+	}
+
+	g_free(oldnick);
+	g_free(p);
+
+	printformat(server, server->group->name, MSGLEVEL_CRAP,
+		    ICBTXT_STATUS, args[0], args[1]);
+}
+
+/*
+ * args0 = "Topic"
+ * args1 = "<nickname> changed the topic to "<topic>"
+ */
+static void status_topic(ICB_SERVER_REC *server, char **args)
+{
+	char *topic, *setby, *p1, *p2;
+
+	p1 = strchr(args[1], '"');
+	p2 = strrchr(args[1], '"');
+
+	if (p1++) {
+		topic = g_strdup(p1);
+		p2 = strrchr(topic, '"');
+		*p2 = '\0';
+
+		setby = g_strdup(args[1]);
+		p2 = strchr(setby, ' ');
+		*p2 = '\0';
+
+		icb_change_topic(server, topic, setby, time(NULL));
+
+		g_free(topic);
+		g_free(setby);
+	}
+
+	printformat(server, server->group->name, MSGLEVEL_CRAP,
+		    ICBTXT_STATUS, args[0], args[1]);
+}
+
+/*
+ * args0 = "Pass"
+ * args1 = "<nickname> just passed you moderation of group <group>"
+ * args1 = "<nickname> has passed moderation to <nickname>"
+ * args1 = "<nickname> is now mod."
+ *
+ * If the moderator signs off and you are passed moderation, then the third
+ * args1 is used.
+ *
+ */
+static void status_pass(ICB_SERVER_REC *server, char **args)
+{
+	/*
+	 * Eventually we might want to track this, for now just print status
+	 * to the group window
+	 */
+	printformat(server, server->group->name, MSGLEVEL_CRAP,
+		    ICBTXT_STATUS, args[0], args[1]);
+}
+
+static void status_default(ICB_SERVER_REC *server, char **args)
+{
+	/* Send messages to the group window by default */
+	printformat(server, server->group->name, MSGLEVEL_CRAP,
+		    ICBTXT_STATUS, args[0], args[1]);
+}
+
 static void sig_server_add_fill(SERVER_SETUP_REC *rec,
 				GHashTable *optlist)
 {
@@ -109,13 +485,23 @@ void fe_icb_init(void)
 {
 	theme_register(fecommon_icb_formats);
 
-	signal_add("icb event status", (SIGNAL_FUNC) event_status);
         signal_add("icb event error", (SIGNAL_FUNC) event_error);
         signal_add("icb event important", (SIGNAL_FUNC) event_important);
         signal_add("icb event beep", (SIGNAL_FUNC) event_beep);
         signal_add("icb event open", (SIGNAL_FUNC) event_open);
         signal_add("icb event personal", (SIGNAL_FUNC) event_personal);
+        signal_add("icb cmdout co", (SIGNAL_FUNC) cmdout_co);
+        signal_add("icb cmdout wl", (SIGNAL_FUNC) cmdout_wl);
         signal_add("default icb cmdout", (SIGNAL_FUNC) cmdout_default);
+        signal_add("icb status arrive", (SIGNAL_FUNC) status_arrive);
+        signal_add("icb status depart", (SIGNAL_FUNC) status_depart);
+        signal_add("icb status sign-on", (SIGNAL_FUNC) status_signon);
+        signal_add("icb status sign-off", (SIGNAL_FUNC) status_signoff);
+        signal_add("icb status status", (SIGNAL_FUNC) status_join);
+        signal_add("icb status topic", (SIGNAL_FUNC) status_topic);
+        signal_add("icb status name", (SIGNAL_FUNC) status_name);
+        signal_add("icb status pass", (SIGNAL_FUNC) status_pass);
+        signal_add("default icb status", (SIGNAL_FUNC) status_default);
 
 	signal_add("server add fill", (SIGNAL_FUNC) sig_server_add_fill);
 	command_set_options("server add", "-icbnet");
@@ -125,13 +511,23 @@ void fe_icb_init(void)
 
 void fe_icb_deinit(void)
 {
-        signal_remove("icb event status", (SIGNAL_FUNC) event_status);
         signal_remove("icb event error", (SIGNAL_FUNC) event_error);
         signal_remove("icb event important", (SIGNAL_FUNC) event_important);
         signal_remove("icb event beep", (SIGNAL_FUNC) event_beep);
         signal_remove("icb event open", (SIGNAL_FUNC) event_open);
         signal_remove("icb event personal", (SIGNAL_FUNC) event_personal);
+        signal_remove("icb cmdout co", (SIGNAL_FUNC) cmdout_co);
+        signal_remove("icb cmdout wl", (SIGNAL_FUNC) cmdout_wl);
         signal_remove("default icb cmdout", (SIGNAL_FUNC) cmdout_default);
+        signal_remove("icb status arrive", (SIGNAL_FUNC) status_arrive);
+        signal_remove("icb status depart", (SIGNAL_FUNC) status_depart);
+        signal_remove("icb status sign-on", (SIGNAL_FUNC) status_signon);
+        signal_remove("icb status sign-off", (SIGNAL_FUNC) status_signoff);
+        signal_remove("icb status status", (SIGNAL_FUNC) status_join);
+        signal_remove("icb status topic", (SIGNAL_FUNC) status_topic);
+        signal_remove("icb status name", (SIGNAL_FUNC) status_name);
+        signal_remove("icb status pass", (SIGNAL_FUNC) status_pass);
+        signal_remove("default icb status", (SIGNAL_FUNC) status_default);
 
 	signal_remove("server add fill", (SIGNAL_FUNC) sig_server_add_fill);
 }
